﻿using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace 实体跟踪
{
    public class Article
    {
        public int Id { get; set; }
        public string Title { get; set; }
        public string Message { get; set; }

        //建议new 一个空的List
        public List<Comment> Comments { get; set; } = new List<Comment>();
    }    
}
